HT-RT4/RT40
HT-RT4/RT40
2424
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 V or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
•
f
: Internal component.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark
: POWER ON
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : AUDIO (DIGITAL)
J : AUDIO (ANALOG)
E : VIDEO
L : USB
a : Bluetooth
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
•
f
: Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Circuit Boards Location
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• MAIN board (RT4) or EG4 MAIN board (RT40) is multi-
layer printed board. However, the patterns of intermediate
layers have not been included in diagrams.
• Abbreviation
AR : Argentina model
AUS : Australian model
E3 : 240 V AC area in E model
E12 : 220-240 V AC area in E model
EA : Saudi Arabia model
LA9 : Latin-American model
SP : Singapore model
• Abbreviation
AR : Argentina model
AUS : Australian model
E3 : 240 V AC area in E model
E12 : 220-240 V AC area in E model
EA : Saudi Arabia model
LA9 : Latin-American model
SP : Singapore model
Note: The components identifi ed by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Note 1: When the complete MAIN board (RT4) or
EG4 MAIN board (RT40) is replaced, refer to
“NOTE OF REPLACING THE IC1000 AND
IC1002 ON THE MAIN BOARD (RT4) OR
EG4 MAIN BOARD (RT40) AND THE COM-
PLETE MAIN BOARD (RT4) OR COMPLETE
EG4 MAIN BOARD (RT40)” on page 5.
Note 2: When the complete MAIN board (RT4) or EG4
MAIN board (RT40) is replaced, spread the
bond referring to“BOND FIXATION OF ELEC-
TRIC PARTS” on page 6.
MAIN board (RT4) /
EG4 MAIN board (RT40)
RC-S730 (WW)
CONNECTOR board
EG4 OLED
CHUKEI PC board
USB board
TOUCH board
BLUETOOTH module
SPEAKER CHUKEI PC BOAR board
REGULATOR, SWITCHING 3L405W-4 (Except E12) /
REGULATOR, SWITCHING 3L405W-5 (E12)
To Next Page
Loading...
Need help?
General
